Strong ferromagnetic metal-ligand exchange in a nickel bis(3,5-dipyridylverdazyl)complex

被引:41
作者
Brook, David J. R. [1 ]
Richardson, Cardius J. [1 ]
Haller, Benjamin C. [1 ]
Hundley, Michael [2 ]
Yee, Gordon T. [2 ]
机构
[1] San Jose State Univ, Dept Chem, San Jose, CA 95192 USA
[2] Virginia Polytech Inst & State Univ, Dept Chem, Blacksburg, VA 24061 USA
关键词
COORDINATED VERDAZYL RADICALS; MAGNETIC-PROPERTIES; SPECTROSCOPIC PROPERTIES; PROTONIC MODULATION; COMPLEXES; NITROXIDE; DERIVATIVES; COBALT(II); CHEMISTRY; IONS;
D O I
10.1039/c0cc02233k
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A new 1,5-dipyridyl verdazyl, synthesized from the corresponding dipyridyl hydrazone, coordinates nickel(II) to form a structurally characterized, pseudooctahedral complex analogous to Ni(terpy)(2)(2+). The unusually short Ni-verdazyl distance results in strong ferromagnetic exchange (J(Ni-rad) = + 300, J(rad-rad) = + 160 cm(-1)) between all three paramagnetic species along with a metal-ligand charge transfer band in the electronic spectrum.
引用
收藏
页码:6590 / 6592
页数:3
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